Basically their argument goes like this, the Jewish people, throughout history, have been kicked out of a bunch of places a bunch of times, and thus this is evidence of their, I guess inner villainy or whatever. So I have no clue how to debunk that. They sent me a link that I can no longer find essentially giving a yearly overview of all the times that Jewish people tried to live somewhere and got kicked out. So what reasons were they kicked out? Is this a notable thing to happen to a group of people or is this kind of thing common.